turbo calculations

Since i have so many projects all at the same time it has taken me a while to get this done.

Here are stock figures
150hp at the crank redline at 5600rpm

Here they are. This is at 10lb's of boost

PR system 1.612 (This is the number on the left side of the map)
Tout actual 199 degrees F
Denstiy ratio 1.514 (at sea level)
VFR actual 201.254cfm
MFR turbo 22.213lb
Horsepower at crank 222.13hp
MFR points plotted in lb/min These are the numbers at the bottom of the compressor chart.

5600 rpm 22.024 (redline rpm I.E. shift point)
4950 rpm 18.312 (halfway point between full coost and redline)
2300 rpm 8.3000 (expected full boost)
1500 rpm 2.8800
(halfway point between idle and full boost, estimated 5lbs of boost)

To run my injectors at this horsepower at the aproriate 85% duty cycle i need
412cc injectors.

So there you guys go plot the points and let me know if you see a mistake.

240sx knock sensor and oil press sensor replacment

So since my turbo dreams seem to keep me up later and later at night i got inspired to further the progress on my 240sx turbo project. I installed my new knock sensor and oil pressure sending unit. The knock sensor was making a check engine code fault and when your ecu is in a safety mode (when the check engine light is on) you cant tune the car very well. Realizing this i went to fix my problem here is a quick write up.

1. Disconnect the battery
2. Remove intake tube from manifold
3. Remove upper radiator hose from the engine
4. Remove the smaller water hose that runs in the middle of the upper and lower manifold halves and heads strait to the back of the manifold. If you cant get your hands in their then save your self the time and just remove the intake manifold.
5. If you can fit your hand in between the upper and lower manifold halves then you can probably get the knock sensor out and in without removing the manifold.(getting it back in is the trick)
6. Remember if you remove a fuel line it will be pressurized. I removed the one in between the middle upper manifold runners.
7. Have a friend hold the bolt on the sensor once it gets close to the mounting hole with a magnet, squeeze your hand into the manifold and thread the bolt so you can get a ratchet on it to tighten it up.
8. Remember a knock sensor must be tightened to spec 15-20 ft lbs
9. Then just put it all back together.

The oil pressure sensor was to get my freaking car to stop puking oil and so far it seems successful. The installation here is self explanatory. The only thing is since i was already leaking oil i added plumbers tape to the threads so it would create an extra Tight seal.

So thats it for now.

GTO update Jan 2008

Ok well after some time being neglected here are some pics of my GTO. I have been working on my other projects for the last few months and it is time to get back to work on our beast.

Here is how she sits now.





Here is our 67 catalina 389 with a GM three 2 barrel carb manifold and two of the three carbs. Keep in mind we still ahvnt started the rebuild on these parts.






Here are some pics of our 455 install in process and our front drum to disk conversion. Both of these steps are far from completed, dont mind the rusty bits they are just for the fiting process.

This is the brake swap in progress

Here is a before picture.


Our 455 sits like this at the moment awaiting a rubber raiser and a four barrel manifold with 950 cfm carb. Dont mind the valve covers.

Mike's 10 second Camaro

Here's the specs on my friend Mike Wheeler's
1986 Chevy Camaro
2925lbs (with driver)

Best times
1/4 mile 10.54 @ 129mph
1/8 mile 6.67 @ 102mph

Engine specs
-408ci SBC 4 bolt main 517 block
-1/2 fill hard block
-Dart iron eagle heads
-11.0 to 1 compression ratio
-Lunati solid roller cam .685 lift
-Comp cams pro roller rocker arms

Trans specs
-Power glide trans
-Pro tree trans brake
-Harry Hewitt 1.76 gear set

Body,fram,and suspension mods
-Harwood fiberglass hood and scoop
-10 point roll cage
-S&W back half,ladder bars and coil overs
-narrowed 12 bolt chevy rear end w/spool
-Aluminum sheet metal floors

Rear end
-4.56 Pro gears
-Summer bros axles
-36" tubes

Fuel supply
-5 gallon fuel cell
-Holley blue fuel pump
-Fram hp fuel filter

Misc
-Weld pro star wheels
-Rear tires 32x15x15 M/T slicks
-Front tires 15x3.5 M/T front runners
-Full msd ignition
-Digital delay ctc delay box
-Dedenbear throttle stop

Owned and raced by Mike Wheeler, Pres WheelerRacing enterprises San Antonio,TX

As a purpose built bracket racer this car does very well and even though it is still a fairly new project for Mike he has already proven to have great potential in the upcoming season's. Best of luck to you mike, ill hopefully be their in my GTO soon.